Quartus

Can't place differential I/O pins and/or associated SERDES transmitters or receivers due to illegal location assignments


CAUSE: You assigned the differential I/O pins in the design to locations that do not support differential I/O pins or SERDES transmitters or receivers.
ACTION: Delete or change the location assignments.

See also:

Assigning a Node to a Region
Assigning an Entity or Node to a Location
Assigning Pins
Changing Assignments
Deleting Assignments in the Assignment Organizer
Deleting Assignments in the Floorplan Editor
Overview: Making Assignments
Overview: Working with Assignments in the Floorplan Editor

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